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Discrete Dynamics in Nature and Society
Volume 2015, Article ID 716547, 10 pages
http://dx.doi.org/10.1155/2015/716547
Research Article

Velocity Control for Coning Motion Missile System Using Direct Discretization Method

Nanjing University of Science and Technology, Nanjing 210094, China

Received 3 September 2015; Accepted 19 November 2015

Academic Editor: Jing Na

Copyright © 2015 Rui-sheng Sun and Chao Ming. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This paper presents a new coning motion control methodology, which takes into account the terminal speed constraint to design the velocity control system for a missile. By using a direct discretization method to transform the optimal control problem into a nonlinear dynamic programming problem, the optimal trajectory and velocity profile are obtained to satisfy the design index requirement. In order to perform the velocity control, a virtual moving target is proposed for the missile to chase along the optimized trajectory. Consequently, after building velocity control model, a velocity control law and control parameters of the coning motion are completed through the dynamic inversion theory. The simulation results suggest that the proposed control law has a good performance and could be applied to the guidance for the missile with terminal speed control constraint.